Find the vertices and graph the hyperbola.49x2 - 4y2 = 196
A. (-2, 0), (2, 0)
B. (-7, 0), (7, 0)
C. (0, -7), (0, 7)
D. (0, -2), (0, 2)
Answer: A
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Simplify. Remember that we have assumed that radicands do not represent the square of a negative number.
A. (z - 6)2
B. 
- 6
C. z - 6
D. z - 
Solve.The height in meters of females in a certain ethnic group is approximated by h = 0.52 + 2 log (t/3) where t is the girl's age in years and 1 ? t ? 20. Estimate a girl's height at 4 years of age in this particular ethnic group. Round to the nearest hundredth.
A. 0.77 m B. 1.12 m C. 0.96 m D. 0.52 m
Solve the problem.Let f(x) compute the cost of a rental car after x days of use 
per day. What does 
compute?
A. The cost of rental for x days B. The cost of rental for 24 days C. The number of days rented for x dollars D. The number of days rented for 24 dollars
Perform the indicated operation.(4 - 3x3 + 6x5 + 8x4) + (8x4 - 9x3 + 7 + 8x5)
A. 14x5 + 16x4 - 12x3 + 11 B. 12x5 + 12x4 + 13x3 + 16 C. 18x24 + 11 D. 14x10 + 16x8 - 12x6 + 11